chore(skill): 按 SCOPE 降级两个无增量技能

- verification-before-completion / ai-proj-helper-entry 标记 deprecated
  （3 组难用例均无增量：核心规则已在用户级 AGENTS.md）
- 入口路由内容转成 docs/skill-routing.md（索引不算规则，不占技能目录）
- catalog: promoted 58（40 model-invoked + 18 user-invoked）、beta 1、deprecated 2

catalog.json

@@ -1,12 +1,13 @@
 {
   "repo": "ai-proj-helper",
-  "generated_at": "2026-10-31T14:16:17Z",
+  "generated_at": "2026-10-31T14:17:06Z",
   "total": 61,
   "counts": {
     "promoted/user-invoked": 18,
-    "beta/user-invoked": 2,
+    "deprecated/user-invoked": 1,
     "promoted/model-invoked": 40,
-    "beta/model-invoked": 1
+    "beta/user-invoked": 1,
+    "deprecated/model-invoked": 1
   },
   "skills": [
     {
@@ -57,7 +58,7 @@
       "name": "ai-proj-helper-entry",
       "category": "core",
       "version": "0.1.0",
-      "status": "beta",
+      "status": "deprecated",
       "invocation": "user-invoked",
       "description": "ai-proj-helper 技能库路由：告诉你有哪些技能、什么任务用哪个、以及「REQ released + PDV 通过才算交付」的强制口径。人在开始需求/开发/评审/发布任务前主动调用。",
       "description_len": 96,
@@ -673,7 +674,7 @@
       "name": "verification-before-completion",
       "category": "req",
       "version": "0.1.0",
-      "status": "beta",
+      "status": "deprecated",
       "invocation": "model-invoked",
       "description": "汇报「完成/修好/通过」或关闭任务、提交 PR、宣布 REQ 完成之前，必须先运行验证命令并附证据；没有证据不得声称完成。当准备说完成、关闭任务、或汇报交付前使用。",
       "description_len": 82,